The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 1987
Filed:
Mar. 07, 1986
Applicant:
Inventors:
Haruma Tanaka, Saitama, JP;
Yasuo Ohashi, Saitama, JP;
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21H / ;
U.S. Cl.
CPC ...
72 68 ; 2915 / ;
Abstract
A poly-V pulley formed from a cup-shaped sheet metal blank by axially compressing the cylindrical portion while confined in dies to form a thickened cylindrical portion, with radially pressurized dies to prevent buckling or corrugating, and roll forming the thickened portion into the external poly-V grooves and the opposite internal surface with axially extending grooves of a convex and concave shape for maintaining the accuracy of shape and size of the poly-V grooves.
Tanaka, Haruma. (1987). Poly-v pulley formed of sheet metal and method and apparatus for making (U.S. Patent No. 4697445). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4697445
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile